- Multi-port & ButtonYou can check the on/off and HDD action through the blue LED around the power button.There are some I/O ports, which are audio, microphone and 2 USB ports, Power button, Reset button at the front bottom.

- ODD Eject leverOn the right front panel, there is an eject button. Simply press the lever down to eject the ODD!

- Unique ODD tray ejectR4 Bulldozer has a worldwide patent for the unique ODD tray up/down eject way.The way using two spring steel bar, looks like Shock-Absorber of automobile, is evaluated very innovative design.

▼ ODD bay cover is detachable so that you don’t need to break the whole system down.And a ventilation hole of stripe pattern helps to cool down the heat caused by ODD and system itself.

Chassis

- Supports up to the longest graphic cardR4 Bulldozer looks small but technically compact, too. It supports Full-ATX main board, large Power supply and 7 PCI slot. There's no problem with Geforce 9800 GTX280 or Radeon HD4870 and makes your PC as a high-end Gaming PC!!

- Detachable HDD bayR4 Bulldozer includes a detachable HDD bay for the easy assembly. You can detach the bay by removing 2 screws at the side and attach HDD using the screws included.

- Air FilterAn air filter on the front protects the system from the dust coming with cold air. The cleaning is easy because it is detachable.

- Powerful Cooling PC CaseR4 Bulldozer chassis passed Intel Thermal chassis Test and it is upgraded with extra system cooling structure. For the high-end users who wants to use extra fan, air hole is provided at the bottom and rear side. To remove the heat from CPU and high-end graphic card, R4 supports CAG(Chassis Air Guide) 1.1

- Connector & AccessoryManual, Slot guide and screws are included.

- Safety packagingTo maintain safety, air bag is used for the packaging instead of normal Styrofoam.